code: def __init__(self, backbone: str):
      super().__init__()
  
      self.backbone = backbone
      self._tokenizer = Wav2Vec2CTCTokenizer.from_pretrained(
          self.backbone
      )
  
file_path: lightning-flash/src/flash/audio/speech_recognition/output_transform.py
imports: from typing import Any
  import torch
  from flash.core.data.io.output_transform import OutputTransform
  from flash.core.utilities.imports import _TOPIC_AUDIO_AVAILABLE, requires
label_desc: Use image node_id 1 to create a new SpeechRecognitionOutputTransform object from inherited base classes: OutputTransform with example: obj = SpeechRecognitionOutputTransform(backbone)